Walter



w. c. SIMPSON AND 1. A. STEWART.-

SASH ADJUSTER.

APPLI'QATION FILED OCT-1| 191?- 1,325,417. Patented Dec. 16,1919.

lzvwzwrales WALTER C. SI PQQN JAMES A. gram/412T AT TOE/NE) 'STAESPATENT OFFICE.

WA TER, c. snurson AND JAMES STEWART, or OAKLAND, camroanm; SAID SIMPSONASSIGNOR TO SAID srnwaar.

SASI-I-AIDJUSTER.

Specification of Letters Patent. Patented Dec. 16, 1919;"

Application filed October 1, 1917. Serial No. 194,105.

To all whom it may concern:

Be it known that we, WALTER G. SIMP- son andJAMEs A. STEWART, bothcitizens of the United States, and residents of the city of Oakland,county of Alameda, and State of California, have made a new and usefulinventionto wit, Improvements in Sash-Adjusters; and we do herebydeclare the following to be a full, clear, concise, and exactdescription of the same.

The present invention contemplates a sash adjuster that is neat inappearance, compact in structure, adapted to be easily positioned andoperatable in an apparent manner.

Another object of the invention is the re duction of the number of partsto lessen the cost of production.

A. further object is to frictionally control the position of the sash aswell as provide means of adjustment in regulating the resistance inadapting the adjuster to any side swinging or casement sash.

In this specification and the annexed drawings we illustrate theinvention in the form we consider to be the best; but it is to beunderstood that we do not limit ourselves to such form because the saidinvention may be embodied in other forms, and it is also to beunderstood that in and by the claims following the description we desireto cover the invention in whatever form it may be embodied.

In the accompanying one sheet of drawings:

Figure 1 is afront elevation of a window showing the sash adjusterapplied thereto.

Fig. 2 is an enlarged sectional view of the interior construction of thesash adjuster.

In the first figure of the drawing the win dow frame illustrated,consists of the stool 1, side j amb 2, with the window sash 3 hingedthereto in the usual manner. The sash adjuster is mounted with one endsecured to w the stool 1 by screws 6 and the opposite end 7 fastened tothe lower rail 8 of the sash 3.

In detail the sash adjuster consists of a tubular member 9, flattened atone end and having the bracket 6' pivotally mounted thereon. The slidingrod member 11 telescopes within the tubular member 9 and is pivotallysecured to the bracket 12 fastened to the rail 8 by screws 14c. The end16 of the member 9 is slotted and provided with the rolled threads 17.The rolled threads are used in preference to the ordinary cut threadbecause it permitslighter tubing ma;

terial to be-used, reduces the possibilityof' the threaded portionshearing off, and does away with the necessity of having an extraabutment, within the tube 9 to act as a bumper for the head 19, formedon the end 20 of the sliding rod 11. v

The rod 11 moves freely within the tube 9 and is prevented from escapingfrom said tube by the internal projection of the rolled threads 17. Theknurled clamp 21 threaded internally at 22 and slightly tapered, screwsonto the tubular member 9. Rotation of the clamp 21 forward or rearwardon the slotted end 16 either reduces or enlarges the internal diameterof said end 16, sothat the rod 11, held within the member 9, iscontrolled frictionally by the clamping action exerted on it by theknurled clamp 21.

The device is assembled as follows. The tubular member 9 is threaded andslotted as at 17. The rod 11 having one end 20 upset, is slidablyretained within the member 9 by the end 20 bumping against internalprojection of the threaded portion 17. To prevent the rod 11 fromescaping the opposite end of the tube'9 is flattened and ivotallysecured to the. elevated bracket 6.

The knurled clamp 21 is screwed onto the slotted end 17 of the member 9and is retained on the rod 11 by the bracket 7 pivotally secured on theend thereof.

The adjuster can be applied to any casement sash and the adjustment aswell as the variable resistances, encountered in different styles ofsashes are overcome and controlled by the knurled clamp 20 exerting itspressure on the slotted, threaded end 17 which in turn frictionallyengages with the sliding rod 11.

An adjuster of this construction will hold its frictional adjustmentavoiding the necessity of releasing the friction each time that the sashis moved, hence the adjuster can be placed at the top of the sash ifdesired.

Having thus described our invention, what we claim and desire to secureby Letters Patent is: i

1. A sash adjuster including a tubular member having one end thereofslotted and threaded with a rolled thread; a rod slidable within saidtubular member; means on saidrod for limiting the extensible movementthereof by engagement with the internally rolled thread; a clamping nutadapted to en gage the threaded end of the tubular memher andfrictionally control the movement of said rod and fastening means on theends of said tubular member and rod.

2. A sash adjuster including a tubular member having one end thereofslotted and threaded with a'rolled thread; a rod slidably mounted Withinsaid tubular member; a clamping nut threaded internally and engaging thethreaded end of the tubular member for frictionally controlling themovement of said rod; an enlarged end on said rod for engaging theinternally rolled threads of the tubular member for limiting theextensible movement thereof and. fastening means on the ends of saidtubular memher and said rod.

In testimony whereof We have hereunto set our hands at Oakland,California, this 18th day of September, 1917.

WALTER O. SIMPSON. JAMES A. STENART.

In presence of- BALDWIN VALE, LINCOLN V. J OHNSON.

